Improvement in cotton-gins



@initrd .lteres parte aan.

JEEEEEsoN ivi. cLoUcH, oEILIoN, NEW' YORK.

l L eitters Patent No. 103,981, dated June 7, 1870.

To all whom it may concern:

Be it known that I, JEFFERSON M. OnoneH, of Ilion, in the county of Herkimer and "State of New York, have invented a new and improved Gin for Cleaning Cotton; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing making part of this specification, in which- Figure l, plate 1, is a longitudinal section through the machine, taken in a vertical plane.

Eignre 2, plate 1, is a top view of iig. 1, with the covers removed.

Figure 3, plate 2, is a cross-section through'the toothed drum and stripper,'showing the mode of using stationary ribs.

Fgure 4, plate 2, is a front view of a portion of Figures', 6, and 7, plate ,2, are enlarged views in detail, showing thc mode lof constructing the toothed cylinder.

Similar letters of reference indicate corresponding. parts in the several figures.

This invention relates to improvements on that kind of cotton-gins known as the roller-gius, wherein slotted breasts are not employed, but, in llieu thereof, a rcvolving stripper is combined with the saw-cylinder or toothed drum.

My object is to' gin long o1` short ,staples with very much less injury to the fibers than hitherto, by constructing the toothed drum with interspacing ribs between its saws in such manner that the cotton-fibers are not liable to become matted between the teeth, nor to clog up the* teeth, butare loosely held, so as to be readily removed by the revolving brushes, as

will be hereinafter explained.

The toothed drumB consists of a central core and a `number of toothed rings or segments, between which spacing-'ribs are applied.

The stripper D is a rolling cylindrical bar, which is ribbed ou its surface, the ribs extending in a direction with its length, and terminating at botliends in oblique ribs,asshown in iig. V2.

The brush-drum E may be made inthe usual wellknown manner, of slats or bars, tted into circular heads,

and provided with brushes, or their equivalents.

That part of the machine which I have improved is the toothed drum. v'Ihis drum has its circumference,

composed of circles of teeth alternating with ribs g,

which latter are perforated, made of the form. shownVVV clearly in lig. 6. i

The teeth c are formed on the peripheries of segments a, by making the curved throats c', at regular intervals apart, into s aid segments, and rounding laterally the heel of each tooth.

By thus divesting the teeth of sharp or square am gles, they will not be liable to nap or wad up the fibers of cotton. The teeth are also beveled on opposite sides, as shown in the drawing.

To enable others skilled in the artto understand my invention, I will describe its ,construction and op eration.

In the accompanying drawing- A represents the traine' of the machine, within which are arranged a toothed drum, B, a revolving stripper, D, and a revolving brush-drum, E.. Other parts necessary inthe operation of the machine may be constructed in the usual well-known manner.

I prefer to make each circle of teeth lon segments a a a, as shown in fig. 1, butetliis is not essential, as full rings may be employed on which to make-the teeth.

These toothed segments or rings, as the case may be,arc'perforated and secured in place between the ribbed circles G by means of studs which are formed on the latter, and which enter said perforationsin the toothed segments or rings. This makes a cheap and durable fastening for the segments orfull circles of teeth. 1

The ribbed surfaces g, which alternate with the circles of teeth, are formed on the perpheries of 'circular plates G, as shown in figs. 1, 2, 5, and 6,01' upon the surfaces .of stationary segments G, as` shown in figs. 3 and 4. In the former instance the ribbed plates turn with the drum, but in the'latterinstancc the ribbed segments are secured to the frame A, as shown in figs. 3 and 4, and are, of course, stationary.

The peripheriesoi the ribs g, or those points furthest from' the axis of the drum B, are nearly, if not quite, of the same diameter as the circles of teeth, and are preferably rounded or beaded, as shown in iigs. 2 and 6.

These ribbed surfaces between the teeth prevent the seeds from passing beneath the revolving stripper D, and also prevent the cotton from becoming matted among more than one circle of teeth, without passing over the surfaces between them. These surfaces g also lassist the brush-drum E in keeping the teeth clean.

The cylinder with circular. ribbed surfaces, shown in` digs. 1, 2, 5, and 6, is especially adapted for ginning the black-seed or Sea Island cotton, while the cylinder with stationary ribbed surfaces between its teeth is best adapted for the green-seed or short-staple cot` ton. A

The stationary ribbed segments shown in figs. 3 and 4 are secured fast at s to the frame A, and at s to a xed plate, S.

The ribbedor highest points g of these segments G are directly beneath the stripper D, where they are required to prevent the passage beneath the stripper of seeds, and also to preventI matting ot the fibers into the spaces between the teeth.

By my invention I am enabled staple cotton with very much less injury to the fibers than is the case with the saw-gin.77 The seeds are kept under the stripper as long as there remain bers on them for the teeth to get hold of. rlhe teeth are not liable to iuj nry other foreign substances which frequently get into the gins, as the teeth are in a great measure protected by the interposed ribbed surfaces.

Having described my invention,

What I claim as new, and desire to secure by Letters Patent, is

to gin long or shortl from twigs of cotton, brush, stems, and

1. The combination of ribbed stripper, D, a brushdrnm, E, and a toothed drum, B, when the latter has ribbed surfaces between its teeth, substantially as described. v

2. Constructing and arranging the ribs or plates between which the toothed plates of the drum revolve, so that they present a bearing or support beyond or above the base of the teeth of said plates, for the' cotton to-rest upon while being operated upon, all substantially in the manner described.

JEFFERSON M. CLOUGH.

`Witnesses:

D. LEWIS, F O. SHEPERD. 

